/usr/share/perl5/Git/PurePerl/Protocol.pm is in libgit-pureperl-perl 0.50-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | package Git::PurePerl::Protocol;
use Moose;
use MooseX::StrictConstructor;
use Moose::Util::TypeConstraints;
use namespace::autoclean;
use Git::PurePerl::Protocol::Git;
use Git::PurePerl::Protocol::SSH;
use Git::PurePerl::Protocol::File;
has 'remote' => ( is => 'ro', isa => 'Str', required => 1 );
has 'read_socket' => ( is => 'rw', required => 0 );
has 'write_socket' => ( is => 'rw', required => 0 );
sub connect {
my $self = shift;
if ($self->remote =~ m{^git://(.*?@)?(.*?)(/.*)}) {
Git::PurePerl::Protocol::Git->meta->rebless_instance(
$self,
hostname => $2,
project => $3,
);
} elsif ($self->remote =~ m{^file://(/.*)}) {
Git::PurePerl::Protocol::File->meta->rebless_instance(
$self,
path => $1,
);
} elsif ($self->remote =~ m{^ssh://(?:(.*?)@)?(.*?)(/.*)}
or $self->remote =~ m{^(?:(.*?)@)?(.*?):(.*)}) {
Git::PurePerl::Protocol::SSH->meta->rebless_instance(
$self,
$1 ? (username => $1) : (),
hostname => $2,
path => $3,
);
}
$self->connect_socket;
my %sha1s;
while ( my $line = $self->read_line() ) {
# warn "S $line";
my ( $sha1, $name ) = $line =~ /^([a-z0-9]+) ([^\0\n]+)/;
#use YAML; warn Dump $line;
$sha1s{$name} = $sha1;
}
return \%sha1s;
}
sub fetch_pack {
my ( $self, $sha1 ) = @_;
$self->send_line("want $sha1 side-band-64k\n");
#send_line(
# "want 0c7b3d23c0f821e58cd20e60d5e63f5ed12ef391 multi_ack side-band-64k ofs-delta\n"
#);
$self->send_line('');
$self->send_line('done');
my $pack;
while ( my $line = $self->read_line() ) {
if ( $line =~ s/^\x02// ) {
print $line;
} elsif ( $line =~ /^NAK\n/ ) {
} elsif ( $line =~ s/^\x01// ) {
$pack .= $line;
} else {
die "Unknown line: $line";
}
#say "s $line";
}
return $pack;
}
sub send_line {
my ( $self, $line ) = @_;
my $length = length($line);
if ( $length == 0 ) {
} else {
$length += 4;
}
#warn "length $length";
my $prefix = sprintf( "%04X", $length );
my $text = $prefix . $line;
# warn "$text";
$self->write_socket->print($text) || die $!;
}
sub read {
my $self = shift;
my $len = shift;
my $ret = "";
use bytes;
while (1) {
my $got = $self->read_socket->read( my $data, $len - length($ret));
if (not defined $got) {
die "error: $!";
} elsif ( $got == 0) {
die "EOF"
}
$ret .= $data;
if (length($ret) == $len) {
return $ret;
}
}
}
sub read_line {
my $self = shift;
my $socket = $self->read_socket;
my $prefix = $self->read( 4 );
return if $prefix eq '0000';
# warn "read prefix [$prefix]";
my $len = 0;
foreach my $n ( 0 .. 3 ) {
my $c = substr( $prefix, $n, 1 );
$len <<= 4;
if ( $c ge '0' && $c le '9' ) {
$len += ord($c) - ord('0');
} elsif ( $c ge 'a' && $c le 'f' ) {
$len += ord($c) - ord('a') + 10;
} elsif ( $c ge 'A' && $c le 'F' ) {
$len += ord($c) - ord('A') + 10;
}
}
return $self->read( $len - 4 );
}
__PACKAGE__->meta->make_immutable;
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